Running board



FIG. 1 is a front perspective view of a running board showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a top plan view; and,

FIG. 8 is a bottom view.

It will be understood that the broken lines shown in the drawings illustrate portions of the running board that form no part of claimed design. 

CLAIM The ornamental design for a running board, as shown and described. 